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Finding the Fourth Proportional to 91,354.88, 126,017.16 and 53,621.84

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Solution

The fourth proportional to 91,354.88, 126,017.16 and 53,621.84 is: 73,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,354.88 : 126,017.16 = 53,621.84 : x
  2. Step 2: Convert to fraction form
    91,354.88/126,017.16 = 53,621.84/x
  3. Step 3: Cross multiply
    91,354.88x = 126,017.16 × 53,621.84
  4. Step 4: Simplify right side
    91,354.88x = 6,757,271,990.77
  5. Step 5: Solve for x
    x = 6,757,271,990.77/91,354.88
  6. Step 6: Final answer
    x = 73,967.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.